package com.cucn.ingmall.member.exception;

/**
 * 用户名已经存在异常
 *
 * @author KouChaoJie
 * @since: 2022/1/10 16:36
 */
public class UserNameExistException extends RuntimeException {
    public UserNameExistException() {
        super("用户名已经被注册!");
    }
}
